70880657 has 2 divisors, whose sum is σ = 70880658. Its totient is φ = 70880656.

The previous prime is 70880651. The next prime is 70880717. The reversal of 70880657 is 75608807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47831056 + 23049601 = 6916^2 + 4801^2 .

It is an emirp because it is prime and its reverse (75608807) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 70880657 - 2¹⁴ = 70864273 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (70880651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35440328 + 35440329.

It is an arithmetic number, because the mean of its divisors is an integer number (35440329).

Almost surely, 2^70880657 is an apocalyptic number.

It is an amenable number.

70880657 is a deficient number, since it is larger than the sum of its proper divisors (1).

70880657 is an equidigital number, since it uses as much as digits as its factorization.

70880657 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 70880657 is about 8419.0650906143. The cubic root of 70880657 is about 413.8496365586.

The spelling of 70880657 in words is "seventy million, eight hundred eighty thousand, six hundred fifty-seven".